DIY Bike Alarm

This version of a DIY Bicycle alarm is easy to make, cheap and keep a potential thief away.
This DIY Bicycle Alarm will make an alarm noise when the bicycle is going to be moved
and the angle of the bike changes to more than 15%.
To get this functionality the system is made with a tilt sensor and a speaker connected to an Arduino.
The tilt sensor will recognise when the angle position of the bike changes and triggers a speaker to make some alarm noise.
All together with a battery it will still small enough to fit into a box that can be mounted to the bike.
The parts you will need for this project:

Needed parts:

1 x Arduino UNO or Arduino Pro Mini

1 x Solderless Breadboard or for soldering

1 x Tilt sensor

1x Buzzer (speaker)

Jumer Wires

1 x 10K resistor

Battery: 4x 1.5 AA or 9V

Box for mounting it on the bicycle

For testing, it is good to have an extra breadboard for the tilt sensor, så, you can move it around better.